What are the procedures for flying probe testing?
Flying probe testing is a commonly usedelectronic product testing method, usually used for functional testing andtroubleshooting of PCB (Printed Circuit Board, printed circuit board) orelectronic components. The following is the basic process of flying probetesting:
1.Prepare the test fixture:First, you need to prepare the test fixturefor flying probe testing. These test fixtures typically include components suchas bases, test pins, and control circuitry to support the PCB and interfacewith the test equipment.
2.Design test program:Designing a test program is one of the keysteps in flying probe testing. At this stage, the test engineer needs to writecorresponding test procedures based on the design specifications andrequirements of the PCB or electronic component. Test procedures usuallyinclude information such as the location of test points, test steps, expectedtest results, etc.
3.Install PCB:Mount the PCB to be tested onto the testfixture. Make sure the PCB is properly aligned and securely fastened to thetest fixture to ensure test accuracy and repeatability.
4.Connect test equipment:Connect the test equipment to the testpoints on the PCB. Flying probe contactors are typically used to connect testequipment to test points on the PCB for testing. These test equipment mayinclude digital testers, oscilloscopes, signal generators, etc.
5.Run the test program:Run the pre-designed test program to testthe PCB through the flying probe contactor. The test program will test eachfunctional module or test point on the PCB one by one to check whether it worksnormally and record the test results.
6.Analyze test results:Analyze test results to check whether thePCB meets design specifications and requirements. If any anomalies or failuresare found, further troubleshooting and rectification are required.
7.Generate test report:Generate test reports based on testresults. Test reports usually include a summary of the test, test results,problems found, recommended improvement measures and other information forreference in subsequent improvements and repairs.
8.omplete test:After completing the test, remove the testfixture from the PCB and clean and maintain the test equipment for next use.
Through the above process, flying probetesting can conduct comprehensive functional testing and troubleshooting of PCBor electronic components to ensure that product quality and performance meetdesign requirements.